| Port Royal to Nowy Dwor Mazowiecki | 4,919.59 mi (7,917.31 km) |
| Port Royal to Nowy Sacz | 5,014.12 mi (8,069.45 km) |
| Port Royal to Nowy Targ | 4,992.95 mi (8,035.38 km) |
| Port Royal to Nowy Tomysl | 4,751.72 mi (7,647.16 km) |
| Port Royal to Nysa | 4,855.07 mi (7,813.48 km) |
| Port Royal to Oborniki | 4,767.45 mi (7,672.46 km) |
| Port Royal to Oborniki Slaskie | 4,812.32 mi (7,744.69 km) |
| Port Royal to Olawa | 4,839.16 mi (7,787.87 km) |
| Port Royal to Olecko | 4,929.62 mi (7,933.45 km) |
| Port Royal to Olesnica | 4,833.98 mi (7,779.54 km) |
| Port Royal to Olesno | 4,884.17 mi (7,860.32 km) |
| Port Royal to Olkusz | 4,947.99 mi (7,963.03 km) |
| Port Royal to Olsztyn | 4,866.33 mi (7,831.60 km) |
| Port Royal to Opalenica | 4,762.64 mi (7,664.72 km) |
| Port Royal to Opoczno | 4,938.94 mi (7,948.46 km) |
